n. A horse-power machine used in setting out tobacco or other field plants. It consists of a carriage supporting a small plow for opening the ground, rollers for pressing the soil against the plants, and a water-tank and pipes for watering each plant as soon as it is set out. It is operated by a driver and two boys, who ride behind and drop the plants in the furrow as the machine moves over the ground.n. One who transplants.n. In gardening, a hand-tool for lifting and transplanting small plants with a ball of earth about the roots.n. A machine for moving trees.